4GAI, yes. But still "what you see is what you target" and "if you see them, they see you" are so nicely KISS. They help newbies and they free your mind to seek tactics elsewhere, where it's not a bunch of local fixed tricks anymore, but either dynamic non-local tactical ideas (4GAI emergent behaviour and distinct monster abilities prevents repetition), or using explicit LOS or targeting advantages, like splash damage and hack and back, where 4GAI ensures fair game and so prevents boredom.